Question

if triangle PQR is an isosceles triangle with right angle at q with PQ=3 cm then find PR ​

Answer 1

Answer:

Step-by-step explanation:

ur answer is 3 root 2

explanation:

see pqr is isoceles right angled triangle so as it is isoceles apart from 90 degree angle both will be 45

so apply 45-45-90 theorem so

then accordingly

pq=1/root 2 times pr

thus 3=1/root 2 times pr

cross multiply there is ur answer pr=3 root 2

or just apply pythagoras but I wish I should think out of the box than others